Window-screen.



B. H. CRAWFORD.

WINDOW SCREEN. APPLICATION FILED MAY 5, 1911.

Patented June 11, 1912.

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WINDOW SCREEN.

APPLICATION FILED MAY 5, 1911.

1,029,427, Patented June 11,1912.

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UNITED STATES PATENT OFFICE.

EDWARD H. CRAWFORD, OF NEW ORLEANS, LOUISIANA.

WINDOW-SCREEN.

To all whom it may concern:

Be it known that I, EDWARD H. CRAW- FORD, a citizen of the United States, residing at New Orleans, in the parish of Orleans and State of Louisiana, have invented new and useful Improvements in Window- Screens, of which the following is a specification.

The invention relates to a screen, and more particularly to the class of adjustable screens.

The primary object of the invention is the provision of a screen in which the stiles of the screen frame are channeled or grooved for adjustably receiving slidable extension pieces, thereby permitting the screen to be mounted in different sizes of windows.

Another object of the invention is the provision of a screen which may be slidably mounted in a window casing, without requiring the use of guide ribs, grooves or strips, and that will adjust itself to the window, irrespective of the width thereof, thereby excluding dust, dirt, flies or other insects from a building, and at the same time permitting the sashes 'of such window to be opened in the ordinary well-known manner.

A further object of the invention is the provision of a screen which is simple of construction, strong, durable, light of weight, reliable and efficient in operation, and inexpensive in manufacture.

With these and other objects in view, the invention consists in the construction, combination and arrangement of parts, as will be hereinafter more fully described, illustrated in the accompanying drawings, and pointed out in the claim hereunto appended.

In the drawings: Figure 1 is an elevation of a screen constructed in accordance with the invention. Fig. 2 is a fragmentary enlarged transverse'sectional view through the screen and one of the extensible pieces. Fig. 3 is a sectional view onthe line 3-3 of Fig. 1. Fig. 1 is a fragmentary perspective view of one of the extensible pieces removed from the screen frame. Fig. 5 is a perspective view of one end portion of the screen. Fig. 6 is a transverse sectional view through a window casing and the screen mounted therein. Fig. 7 is a sectional view on the line 77 of .Fig. 1.

Similar reference characters indicate corresponding parts throughout the several views of the drawings.

Referring to the drawings by numerals,

Specification of Letters Patent.

Application filed May 5, 1911.

Patented June 11, 1912. Serial No. 625,252.

the screen comprises essentially vertical side stiles 10, and upper and lower cross bars 11 land 12, respectively, the latter being connected to the stiles by means of corner reinforcing plates 13, which may be ornamented or plain, as may be desired. Thus, the plates 13 will serve to strengthen the screen frame proper to give the required rigidity thereto. Mounted within the stiles and cross bars in i any suitable manner is a wire mesh or reticulated screen fabric 14, the stiles and cross bars being constructed preferably from wood, although the same may be made from any other suitable material.

Formed in the vertical stiles 10 of the screen frame are centrally located longitudinally extending bifurcations forming guide grooves 15, the same opening through the outer edges of the stiles, and into which telescope. extension pieces, comprising T- shaped members or strips 16, forming central wings 17, the same slidably engaging in the grooves 15 and outer abutment flanges 18, the members or strips 16 being coextensive with the stiles 10 and have formed on their opposite ends flanges 19, bent out wardly at right angles to the flanges 18, and are adapted to engage with and overlap the opposite ends of the stiles 10, the abutment flanges 18 being adapted to contact with the outer guide strips 20 for the sashes of a window casing 21, in the usual manner.

Formed in the stiles 10 and the adjacent ends of the cross bars 11 and 12, are alining sockets 22, the same intersecting the grooves 15, and opening through the outer edges of the stiles 10, the inner ends of the sockets 22 being reduced to form circular shoulders or bearing seats 23, and .slidably engaged in the sockets 22 are guide stems or pins 24, the inner ends of which are formed with reduced spindle portions 25 engaging in the inner reduced portions of the sockets 22, the spindle portions 25 being surrounded by means of coiled expansion springs 26, the inner ends of which have their bearing against the seats 23, while their outer ends are seated against the inner ends of the pins 24, the springs being confined within the sockets 22. The pins 24, at their outer ends, are split to form slots 2?, in which are engaged the links 17 of the extension strips 16, the pins 24 being riveted or otherwise secured to said links 17, whereby on the fitting of the screen within a window casing, the extension strips 16 will be forced outwardly by the tension of the springs 26, so that the flanges 18 of the extension strips will contact with the guide strips 20 on the window casing, thereby properly mounting the screen within the latter. It is clearly evident that the screen may be located either at the top or bottom of the window, inside or outside of the sashes thereof.

The abutment flanges 18 upon the extension strips 16 have fixed thereto, near the top and bottom ends thereof, the felt pieces 28, which prevent the said flanges 18 from scratching or otherwise damaging the guide strips 20 upon the window casing, when the screen is being raised or lowered therein.

To prevent the screen from falling out of the window casing 21, the abutment flanges 18, at opposite longitudinal edges thereof, are provided with outturned tongues 29, the same being bent from baseplates 30 provided with elongated slots 31, through which are passed set screws 32, thereby adjustably connecting the said base plates 30 the said flanges.

against the inner faces of the abutment flanges 18, the screws 32 being threaded in The wings 17 of the strips 16 are suitably cut away at the points of the base plates 30 to permit the adjustment thereof, when the occasion requires.

Formed in the tongues 29 are spaced parallel slots 33 forming therebetween an instruck bail 34, and through these slots are passed felt strips 35, the same lying against the outer face of the instruck bail 34, and are adapted to engage the window casement, or the edges of the guide strips for the sashes thereof, so as to prevent the scratching or marring of the window casing when the screen is being raised or lowered therein.

Suitably fixed to the wings 17 of the extension strips 16, medially thereof, are inwardly extending adjusting stems or keys 36, the same working through suitable openings formed in the vertical stiles 10, and have threaded thereon adjustable nuts 37, the latter working against the inner faces of the stiles, and upon adjustment of the T nuts, the outward movement of the extension strips 16 will be limited. It is clearly evident that in this manner the extension strips will be movably connected with the screen frame and limited in their movei ments.

The tongues 29 will slidably retain the screen in the window casing, so as to prevent the possibility of the same falling therefrom, when being raised or lowered therein, and in this manner obviates the necessity of guide ribs, grooves, or strips for the screen. i

What is claimed is: r A window screen comprising a frame having longitudinally grooved stiles, and said stiles being provided, adjacent the ends, with alining sockets, the same intersecting the grooves and opening through the outer edges of the stiles, the inner ends of the sockets being reduced to form circular shoulders, extensible pieces including abutment flanges and wings, guide stems having their outer ends split to form slots for engagement with the said wings and riveted thereto, said guide stems having their inner ends formed with reduced spindle portions engaging in the inner reduced portions of the said sockets, expansion springs surrounding the stems and working against the same for forcing the extensible pieces outwardly from the stiles, inwardly extending adjusting stems fixed to the said wings, the same working through suitable openings provided in the vertical stiles and threaded thereon adjustable nuts, the latter working against the inner faces of the stiles, for limiting the outward slipping movement of the extensible pieces with respect to the frame, and members adj ustably connected to the abutment flanges and having out-turned tongues adapted for engagement with vertical guide strips of a window casing.

- In testimony whereof I affix my signature in presence of two witnesses.

EDWARDH. GRAlVFORD. Witnesses:

C. A. YOUNGER,

V. BONOMO.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

